Finding the Fourth Proportional to 80,675.24, 120,975.84 and 47,410.96
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Solution
The fourth proportional to 80,675.24, 120,975.84 and 47,410.96 is: 71,094.68
Step by Step Solution
- Step 1: Write the proportion equation
80,675.24 : 120,975.84 = 47,410.96 : x - Step 2: Convert to fraction form
80,675.24/120,975.84 = 47,410.96/x - Step 3: Cross multiply
80,675.24x = 120,975.84 × 47,410.96 - Step 4: Simplify right side
80,675.24x = 5,735,580,711.21 - Step 5: Solve for x
x = 5,735,580,711.21/80,675.24 - Step 6: Final answer
x = 71,094.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.